package com.mcxx.util;



public class NumberConvert {

    private static final String[] NUMBERS = {"零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"};

    private static final String[] IUNIT = {"元", "拾", "佰", "仟", "万", "拾", "佰", "仟", "亿", "拾", "佰", "仟", "万", "拾", "佰", "仟"};

    private static final String[] DUNIT = {"角", "分", "厘"};

    public static String toChinese(String str) {
        str = str.replaceAll(",", "");
        String integerStr;
        String decimalStr;

        if (str.indexOf(".") > 0) {
            integerStr = str.substring(0, str.indexOf("."));
            decimalStr = str.substring(str.indexOf(".") + 1);
        } else if (str.indexOf(".") == 0) {
            integerStr = "";
            decimalStr = str.substring(1);
        } else {
            integerStr = str;
            decimalStr = "";
        }

        if (!integerStr.equals("")) {
            integerStr = Long.toString(Long.parseLong(integerStr));
            if (integerStr.equals("0")) {
                integerStr = "";
            }
        }

        if (integerStr.length() > IUNIT.length) {
            System.out.println(str + ":超出处理能力");
            return str;
        }
        int[] integers = toArray(integerStr);
        boolean isMust5 = isMust5(integerStr);
        int[] decimals = toArray(decimalStr);
        return getChineseInteger(integers, isMust5) + getChineseDecimal(decimals);
    }



    private static int[] toArray(String number) {
        int[] array = new int[number.length()];
        for (int i = 0; i < number.length(); i++) {
            array[i] = Integer.parseInt(number.substring(i, i + 1));
        }
        return array;
    }



    private static String getChineseInteger(int[] integers, boolean isMust5) {
        StringBuffer chineseInteger = new StringBuffer("");
        int length = integers.length;
        for (int i = 0; i < length; i++) {


            String key = "";
            if (integers[i] == 0) {
                if ((length - i) == 13)
                    key = IUNIT[4];
                else if ((length - i) == 9)
                    key = IUNIT[8];
                else if ((length - i) == 5 && isMust5)
                    key = IUNIT[4];
                else if ((length - i) == 1)
                    key = IUNIT[0];

                if ((length - i) > 1 && integers[i + 1] != 0)
                    key += NUMBERS[0];
            }
            chineseInteger.append(integers[i] == 0 ? key : (NUMBERS[integers[i]] + IUNIT[length - i - 1]));
        }
        return chineseInteger.toString();
    }


    private static String getChineseDecimal(int[] decimals) {
        StringBuffer chineseDecimal = new StringBuffer("");
        for (int i = 0; i < decimals.length; i++) {

            if (i == 3)
                break;
            chineseDecimal.append(decimals[i] == 0 ? "" : (NUMBERS[decimals[i]] + DUNIT[i]));
        }
        return chineseDecimal.toString();

    }



    private static boolean isMust5(String integerStr) {
        int length = integerStr.length();
        if (length > 4) {
            String subInteger = "";
            if (length > 8) {

                subInteger = integerStr.substring(length - 8, length - 4);
            } else {
                subInteger = integerStr.substring(0, length - 4);
            }
            return Integer.parseInt(subInteger) > 0;
        } else {
            return false;
        }
    }

    public static void main(String[] args) {
        String number = "3000";
        System.out.println(number + " " + NumberConvert.toChinese(number));
        number = "1234567890123456.123";
        System.out.println(number + " " + NumberConvert.toChinese(number));
        number = "0.0798";
        System.out.println(number + " " + NumberConvert.toChinese(number));
        number = "10,001,000.09";
        System.out.println(number + " " + NumberConvert.toChinese(number));
        number = "01.107700";
        System.out.println(number + " " + NumberConvert.toChinese(number));
    }
}

